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/*************************************************************************
* *
* Open Dynamics Engine, Copyright (C) 2001-2003 Russell L. Smith. *
* All rights reserved. Email: russ@q12.org Web: www.q12.org *
* *
* Threading subsystem implementation file. *
* Copyright (C) 2011-2019 Oleh Derevenko. All rights reserved. *
* e-mail: odar@eleks.com (change all "a" to "e") *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of EITHER: *
* (1) The GNU Lesser General Public License as published by the Free *
* Software Foundation; either version 2.1 of the License, or (at *
* your option) any later version. The text of the GNU Lesser *
* General Public License is included with this library in the *
* file LICENSE.TXT. *
* (2) The BSD-style license that is included with this library in *
* the file LICENSE-BSD.TXT. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files *
* LICENSE.TXT and LICENSE-BSD.TXT for more details. *
* *
*************************************************************************/
/*
* Subsystem APIs implementation for built-in threading support provider.
*/
#include <ode/common.h>
#include <ode/threading_impl.h>
#include "config.h"
#include "threading_impl_posix.h"
#include "threading_impl_win.h"
#include "threading_impl.h"
static dMutexGroupID AllocMutexGroup(dThreadingImplementationID impl, dmutexindex_t Mutex_count, const char *const *Mutex_names_ptr/*=NULL*/);
static void FreeMutexGroup(dThreadingImplementationID impl, dMutexGroupID mutex_group);
static void LockMutexGroupMutex(dThreadingImplementationID impl, dMutexGroupID mutex_group, dmutexindex_t mutex_index);
// static int TryLockMutexGroupMutex(dThreadingImplementationID impl, dMutexGroupID mutex_group, dmutexindex_t mutex_index);
static void UnlockMutexGroupMutex(dThreadingImplementationID impl, dMutexGroupID mutex_group, dmutexindex_t mutex_index);
static dCallWaitID AllocThreadedCallWait(dThreadingImplementationID impl);
static void ResetThreadedCallWait(dThreadingImplementationID impl, dCallWaitID call_wait);
static void FreeThreadedCallWait(dThreadingImplementationID impl, dCallWaitID call_wait);
static void PostThreadedCall(
dThreadingImplementationID impl, int *out_summary_fault/*=NULL*/,
dCallReleaseeID *out_post_releasee/*=NULL*/, ddependencycount_t dependencies_count, dCallReleaseeID dependent_releasee/*=NULL*/,
dCallWaitID call_wait/*=NULL*/,
dThreadedCallFunction *call_func, void *call_context, dcallindex_t instance_index,
const char *call_name/*=NULL*/);
static void AlterThreadedCallDependenciesCount(
dThreadingImplementationID impl, dCallReleaseeID target_releasee,
ddependencychange_t dependencies_count_change);
static void WaitThreadedCall(
dThreadingImplementationID impl, int *out_wait_status/*=NULL*/,
dCallWaitID call_wait, const dThreadedWaitTime *timeout_time_ptr/*=NULL*/,
const char *wait_name/*=NULL*/);
static unsigned RetrieveThreadingThreadCount(dThreadingImplementationID impl);
static int PreallocateResourcesForThreadedCalls(dThreadingImplementationID impl, ddependencycount_t max_simultaneous_calls_estimate);
static const dxThreadingFunctionsInfo g_builtin_threading_functions =
{
sizeof(dxThreadingFunctionsInfo), // unsigned struct_size;
&AllocMutexGroup, // dMutexGroupAllocFunction *alloc_mutex_group;
&FreeMutexGroup, // dMutexGroupFreeFunction *free_mutex_group;
&LockMutexGroupMutex, // dMutexGroupMutexLockFunction *lock_group_mutex;
&UnlockMutexGroupMutex, // dMutexGroupMutexUnlockFunction *unlock_group_mutex;
&AllocThreadedCallWait, // dThreadedCallWaitAllocFunction *alloc_call_wait;
&ResetThreadedCallWait, // dThreadedCallWaitResetFunction *reset_call_wait;
&FreeThreadedCallWait, // dThreadedCallWaitFreeFunction *free_call_wait;
&PostThreadedCall, // dThreadedCallPostFunction *post_call;
&AlterThreadedCallDependenciesCount, // dThreadedCallDependenciesCountAlterFunction *alter_call_dependencies_count;
&WaitThreadedCall, // dThreadedCallWaitFunction *wait_call;
&RetrieveThreadingThreadCount, // dThreadingImplThreadCountRetrieveFunction *retrieve_thread_count;
&PreallocateResourcesForThreadedCalls, // dThreadingImplResourcesForCallsPreallocateFunction *preallocate_resources_for_calls;
// &TryLockMutexGroupMutex, // dMutexGroupMutexTryLockFunction *trylock_group_mutex;
};
/*extern */dThreadingImplementationID dThreadingAllocateSelfThreadedImplementation()
{
dxSelfThreadedThreading *threading = new dxSelfThreadedThreading();
if (threading != NULL && !threading->InitializeObject())
{
delete threading;
threading = NULL;
}
dxIThreadingImplementation *impl = threading;
return (dThreadingImplementationID)impl;
}
/*extern */dThreadingImplementationID dThreadingAllocateMultiThreadedImplementation()
{
#if dBUILTIN_THREADING_IMPL_ENABLED
dxMultiThreadedThreading *threading = new dxMultiThreadedThreading();
if (threading != NULL && !threading->InitializeObject())
{
delete threading;
threading = NULL;
}
#else
dxIThreadingImplementation *threading = NULL;
#endif // #if dBUILTIN_THREADING_IMPL_ENABLED
dxIThreadingImplementation *impl = threading;
return (dThreadingImplementationID)impl;
}
/*extern */const dThreadingFunctionsInfo *dThreadingImplementationGetFunctions(dThreadingImplementationID impl)
{
#if dBUILTIN_THREADING_IMPL_ENABLED
dAASSERT(impl != NULL);
#endif // #if dBUILTIN_THREADING_IMPL_ENABLED
const dThreadingFunctionsInfo *functions = NULL;
#if !dBUILTIN_THREADING_IMPL_ENABLED
if (impl != NULL)
#endif // #if !dBUILTIN_THREADING_IMPL_ENABLED
{
functions = &g_builtin_threading_functions;
}
return functions;
}
/*extern */void dThreadingImplementationShutdownProcessing(dThreadingImplementationID impl)
{
#if dBUILTIN_THREADING_IMPL_ENABLED
dAASSERT(impl != NULL);
#endif // #if dBUILTIN_THREADING_IMPL_ENABLED
#if !dBUILTIN_THREADING_IMPL_ENABLED
if (impl != NULL)
#endif // #if !dBUILTIN_THREADING_IMPL_ENABLED
{
((dxIThreadingImplementation *)impl)->ShutdownProcessing();
}
}
/*extern */void dThreadingImplementationCleanupForRestart(dThreadingImplementationID impl)
{
#if dBUILTIN_THREADING_IMPL_ENABLED
dAASSERT(impl != NULL);
#endif // #if dBUILTIN_THREADING_IMPL_ENABLED
#if !dBUILTIN_THREADING_IMPL_ENABLED
if (impl != NULL)
#endif // #if !dBUILTIN_THREADING_IMPL_ENABLED
{
((dxIThreadingImplementation *)impl)->CleanupForRestart();
}
}
/*extern */void dThreadingFreeImplementation(dThreadingImplementationID impl)
{
if (impl != NULL)
{
((dxIThreadingImplementation *)impl)->FreeInstance();
}
}
/*extern */void dExternalThreadingServeMultiThreadedImplementation(dThreadingImplementationID impl,
dThreadReadyToServeCallback *readiness_callback/*=NULL*/, void *callback_context/*=NULL*/)
{
#if dBUILTIN_THREADING_IMPL_ENABLED
dAASSERT(impl != NULL);
#endif // #if dBUILTIN_THREADING_IMPL_ENABLED
#if !dBUILTIN_THREADING_IMPL_ENABLED
if (impl != NULL)
#endif // #if !dBUILTIN_THREADING_IMPL_ENABLED
{
((dxIThreadingImplementation *)impl)->StickToJobsProcessing(readiness_callback, callback_context);
}
}
//////////////////////////////////////////////////////////////////////////
static dMutexGroupID AllocMutexGroup(dThreadingImplementationID impl, dmutexindex_t Mutex_count, const char *const *Mutex_names_ptr/*=NULL*/)
{
(void)Mutex_names_ptr; // unused
dIMutexGroup *mutex_group = ((dxIThreadingImplementation *)impl)->AllocMutexGroup(Mutex_count);
return (dMutexGroupID)mutex_group;
}
static void FreeMutexGroup(dThreadingImplementationID impl, dMutexGroupID mutex_group)
{
((dxIThreadingImplementation *)impl)->FreeMutexGroup((dIMutexGroup *)mutex_group);
}
static void LockMutexGroupMutex(dThreadingImplementationID impl, dMutexGroupID mutex_group, dmutexindex_t mutex_index)
{
((dxIThreadingImplementation *)impl)->LockMutexGroupMutex((dIMutexGroup *)mutex_group, mutex_index);
}
// static int TryLockMutexGroupMutex(dThreadingImplementationID impl, dMutexGroupID mutex_group, dmutexindex_t mutex_index)
// {
// bool trylock_result = ((dxIThreadingImplementation *)impl)->TryLockMutexGroupMutex((dIMutexGroup *)mutex_group, mutex_index);
// return trylock_result;
// }
static void UnlockMutexGroupMutex(dThreadingImplementationID impl, dMutexGroupID mutex_group, dmutexindex_t mutex_index)
{
((dxIThreadingImplementation *)impl)->UnlockMutexGroupMutex((dIMutexGroup *)mutex_group, mutex_index);
}
static dCallWaitID AllocThreadedCallWait(dThreadingImplementationID impl)
{
dxICallWait *call_wait = ((dxIThreadingImplementation *)impl)->AllocACallWait();
return (dCallWaitID)call_wait;
}
static void ResetThreadedCallWait(dThreadingImplementationID impl, dCallWaitID call_wait)
{
((dxIThreadingImplementation *)impl)->ResetACallWait((dxICallWait *)call_wait);
}
static void FreeThreadedCallWait(dThreadingImplementationID impl, dCallWaitID call_wait)
{
((dxIThreadingImplementation *)impl)->FreeACallWait((dxICallWait *)call_wait);
}
static void PostThreadedCall(
dThreadingImplementationID impl, int *out_summary_fault/*=NULL*/,
dCallReleaseeID *out_post_releasee/*=NULL*/, ddependencycount_t dependencies_count, dCallReleaseeID dependent_releasee/*=NULL*/,
dCallWaitID call_wait/*=NULL*/,
dThreadedCallFunction *call_func, void *call_context, dcallindex_t instance_index,
const char *call_name/*=NULL*/)
{
(void)call_name; // unused
((dxIThreadingImplementation *)impl)->ScheduleNewJob(out_summary_fault, out_post_releasee,
dependencies_count, dependent_releasee, (dxICallWait *)call_wait, call_func, call_context, instance_index);
}
static void AlterThreadedCallDependenciesCount(
dThreadingImplementationID impl, dCallReleaseeID target_releasee,
ddependencychange_t dependencies_count_change)
{
((dxIThreadingImplementation *)impl)->AlterJobDependenciesCount(target_releasee, dependencies_count_change);
}
static void WaitThreadedCall(
dThreadingImplementationID impl, int *out_wait_status/*=NULL*/,
dCallWaitID call_wait, const dThreadedWaitTime *timeout_time_ptr/*=NULL*/,
const char *wait_name/*=NULL*/)
{
(void)wait_name; // unused
((dxIThreadingImplementation *)impl)->WaitJobCompletion(out_wait_status, (dxICallWait *)call_wait, timeout_time_ptr);
}
static unsigned RetrieveThreadingThreadCount(dThreadingImplementationID impl)
{
return ((dxIThreadingImplementation *)impl)->RetrieveActiveThreadsCount();
}
static int PreallocateResourcesForThreadedCalls(dThreadingImplementationID impl, ddependencycount_t max_simultaneous_calls_estimate)
{
return ((dxIThreadingImplementation *)impl)->PreallocateJobInfos(max_simultaneous_calls_estimate);
}
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